How do I solve 1 down in Daily Telegraph Cryptic 3370?

Question

Accepted Answer

1 down reads "Killer, a killing made?" (4 letters); the answer is BOMB. It's a double-definition clue: two separate definitions of the same word sit side by side. No wordplay split and no indicators — both halves of the clue define the answer. The full step-by-step breakdown is on this page.

Killer, a killing made? (4)

1D — Killer, a killing made? (4) — BOMB